Datapoint Earlier African American Vernacular English/Relativizer what or a form derived from what

Variety: Earlier African American Vernacular English
Feature: Relativizer what or a form derived from what
Value: B - feature is neither pervasive nor extremely rare
Informants: Alexander Kautzsch

Examples

Example 1319:
Them what didn' nurse, they didn' come.

Source: Bailey et al. (eds.) 1991: 62